3221316 has 48 divisors (see below), whose sum is σ = 9546880. Its totient is φ = 920160.

The previous prime is 3221299. The next prime is 3221321. The reversal of 3221316 is 6131223.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1375 + ... + 2886.

Almost surely, 2^3221316 is an apocalyptic number.

3221316 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3221316 is an abundant number, since it is smaller than the sum of its proper divisors (6325564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3221316 is a wasteful number, since it uses less digits than its factorization.

3221316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4281 (or 4273 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 3221316 is about 1794.8024960981. The cubic root of 3221316 is about 147.6877394921.

Adding to 3221316 its reverse (6131223), we get a palindrome (9352539).

The spelling of 3221316 in words is "three million, two hundred twenty-one thousand, three hundred sixteen".